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4.Chemical Bonding and Molecular Structure
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આણ્વિય કક્ષકવાદને આધારે નીચે આપેલામાંથી કઇ દ્વિપરમાણ્વીક સ્પીસીઝ પાસે ફક્ત $\pi$ બંધો છે ?
A
$O_2$
B
$N_2$
C
$C_2$
D
$Be_2$
(NEET-2019)
Solution
According to $M.O.T.$ electronic configuration of $\mathrm{C}_{2}$ molecule is
$\sigma 1 \mathrm{s}^{2}<\sigma^{*} 1 \mathrm{s}^{2}<\sigma 2 \mathrm{s}^{2}<\sigma^{*} 2 \mathrm{s}^{2}<\pi_{2} \mathrm{p}_{\mathrm{x}}^{2}=\pi_{2} \mathrm{p}_{\mathrm{y}}^{2}$
so, $\mathrm{C}_{2}$ molecule contain only $\pi$ bond
Standard 11
Chemistry
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